Error 0xC00CEF09

Value: -1072894199 | 0xC00CEF09 | 3222073097

What does it mean ?

WR_E_NAMESPACEUNDECLARED  
XmlLite: writer: namespace is not declared
Value: 61193 | 0xEF09 | 0b1110111100001001

Where does it come from ?

FACILITY_INTERNET  
Wininet related (Internet APIs)
Value: 12 | 0x00C | 0b00001100

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